KR100892695B1 - Oil pump of automatic transmission - Google Patents

Oil pump of automatic transmission Download PDF

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Publication number
KR100892695B1
KR100892695B1 KR1020060123320A KR20060123320A KR100892695B1 KR 100892695 B1 KR100892695 B1 KR 100892695B1 KR 1020060123320 A KR1020060123320 A KR 1020060123320A KR 20060123320 A KR20060123320 A KR 20060123320A KR 100892695 B1 KR100892695 B1 KR 100892695B1
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KR
South Korea
Prior art keywords
oil
pump
automatic transmission
pump housing
bush
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KR1020060123320A
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Korean (ko)
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KR20080051732A (en
Inventor
강웅석
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현대자동차주식회사
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Priority to KR1020060123320A priority Critical patent/KR100892695B1/en
Priority to JP2007009383A priority patent/JP2008144956A/en
Priority to CN2007100069914A priority patent/CN101196188B/en
Priority to US11/709,501 priority patent/US20080138220A1/en
Publication of KR20080051732A publication Critical patent/KR20080051732A/en
Application granted granted Critical
Publication of KR100892695B1 publication Critical patent/KR100892695B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F04C27/009—Shaft sealings specially adapted for pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

본 발명은 드레인 구멍을 통하여 드레인(drain) 된 잉여의 오일을 회전 요소가 존재하지 않는 자동변속기의 아랫부분으로 배출시킴으로써 처닝(churning)에 따른 기포 발생을 방지하는 자동변속기의 오일펌프에 관한 것이다.The present invention relates to an oil pump of an automatic transmission in which excess oil drained through a drain hole is discharged to a lower portion of an automatic transmission in which no rotating element is present, thereby preventing air bubbles due to churning.

본 발명은, 펌프 하우징; 상기 펌프 하우징에 결합하는 펌프 커버; 상기 펌프 하우징에 압입되어 있는 부쉬; 그리고 상기 펌퍼 커버와 펌프 하우징 사이에 설치되어 있는 로터;를 포함하되, 상기 펌프 하우징과 상기 펌프 커버 사이에는 오일흡입통로, 오일배출통로, 그리고 드레인 유로가 형성되어 있으며, 상기 드레인 유로는 연직 하방향으로 형성되어 있을 수 있다. The present invention, the pump housing; A pump cover coupled to the pump housing; A bush pressed into the pump housing; And a rotor installed between the pump cover and the pump housing, wherein an oil suction passage, an oil discharge passage, and a drain passage are formed between the pump housing and the pump cover, and the drain passage is vertically downward. It may be formed as.

부쉬, 드레인 구멍, 실링 Bush, Drain Hole, Seal

Description

자동변속기의 오일펌프{OIL PUMP OF AUTOMATIC TRANSMISSION}Oil Pump of Automatic Transmission {OIL PUMP OF AUTOMATIC TRANSMISSION}

도 1은 종래의 오일펌프가 자동변속기에 설치된 모습을 보인 부분 단면도이다.1 is a partial cross-sectional view showing a conventional oil pump installed in an automatic transmission.

도 2는 도 1의 일부 확대도이다.2 is an enlarged view of a portion of FIG. 1.

도 3은 본 발명의 실시예에 따른 자동변속기의 오일펌프의 조립도이다.3 is an assembly view of an oil pump of an automatic transmission according to an embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 자동변속기의 오일펌프에서 펌프 커버를 도시한 사시도이다.Figure 4 is a perspective view showing a pump cover in the oil pump of the automatic transmission according to the embodiment of the present invention.

도 5는 본 발명의 실시예에 따른 오일펌프가 자동변속기에 설치된 모습을 보인 부분 단면도이다.5 is a partial cross-sectional view showing an oil pump installed in an automatic transmission according to an embodiment of the present invention.

도 6은 도 5의 일부 확대도이다.6 is an enlarged view of a portion of FIG. 5.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

100: 오일 펌프 110: 펌프 하우징100: oil pump 110: pump housing

120: 펌프 커버 150: 부쉬120: pump cover 150: bush

160: 실링 170: 로터160: sealing 170: rotor

210: 오일흡입통로 220: 오일배출통로210: oil suction passage 220: oil discharge passage

230: 드레인 구멍 240: 드레인 유로230: drain hole 240: drain flow path

본 발명은 자동변속기의 오일펌프에 관한 것이다. 더욱 상세하게는, 본 발명은 드레인 구멍을 통하여 드레인(drain) 된 잉여의 오일을 회전 요소가 존재하지 않는 자동변속기의 아랫부분으로 배출시킴으로써 처닝(churning)에 따른 기포 발생을 방지하는 자동변속기의 오일펌프에 관한 것이다.The present invention relates to an oil pump of an automatic transmission. More specifically, the present invention is an oil of an automatic transmission that prevents bubbles due to churning by discharging excess oil drained through a drain hole to the lower part of an automatic transmission in which there is no rotating element. It is about a pump.

오일펌프는 토크 컨버터와 변속기 하우징 사이에 장착되어 있다. 오일펌프는 토크 컨버터를 통하여 엔진 출력을 전달받는다. 오일펌프는 변속기와 변속유닛으로 오일을 흐르게 하여 변속압력의 생성 및 변속기의 윤활, 냉각의 역할을 수행한다. 오일펌프의 오일은 라인 압력 조절 밸브로 공급되고, 일정 수준의 압력이 될 때까지 시간에 따라 오일의 압력이 비례적으로 증가한다. 오일의 압력이 일정 압력에 도달한 후에는, 라인 압력 조절 밸브의 드레인 포트를 통해 오일펌프로 돌아온다.The oil pump is mounted between the torque converter and the transmission housing. The oil pump receives engine output through a torque converter. The oil pump flows oil through the transmission and the transmission unit to generate the shift pressure, and to lubricate and cool the transmission. The oil in the oil pump is supplied to the line pressure regulating valve, and the pressure of the oil increases proportionally with time until the pressure reaches a certain level. After the oil pressure reaches a certain pressure, it returns to the oil pump through the drain port of the line pressure regulating valve.

도 1을 참고하여, 종래의 자동변속기의 오일펌프를 상세히 설명한다.Referring to Figure 1, the oil pump of the conventional automatic transmission will be described in detail.

도 1에 도시된 바와 같이, 종래의 자동변속기의 오일펌프(20)는 토크 컨버터(10)와 변속유닛(30) 사이에 배치되어 있다. 상기 변속유닛(30)은 유성기어세트(도시하지 않음), 브레이크(B), 그리고 클러치(C)를 포함한다. 또한, 자동변속기에는 주축(40)이 설치되어 있으며, 상기 토크 컨버터(10)는 엔진(도시하지 않음)의 동력을 상기 주축(40)에 전달한다.As shown in FIG. 1, the oil pump 20 of the conventional automatic transmission is disposed between the torque converter 10 and the transmission unit 30. The transmission unit 30 includes a planetary gear set (not shown), a brake B, and a clutch C. In addition, the automatic transmission is provided with a main shaft 40, the torque converter 10 transmits the power of the engine (not shown) to the main shaft 40.

종래의 자동변속기의 오일펌프(20)는 펌프 하우징(45), 펌프 커버(55), 부쉬(50), 그리고 로터를 포함한다.The oil pump 20 of the conventional automatic transmission includes a pump housing 45, a pump cover 55, a bush 50, and a rotor.

펌프 커버(55)는 펌프 하우징(45)에 결합되어 있으며, 부쉬(50)는 상기 펌프 하우징(45)에 압입되어 있다.The pump cover 55 is coupled to the pump housing 45, and the bush 50 is press fit into the pump housing 45.

로터는 상기 펌프 커버(55)와 펌프 하우징(45) 사이에 설치되어 있다. 상기로터는 이너 로터(70)와 상기 이너 로터(70)의 외측에 설치되어 있는 아우터 로터(65)를 포함한다. The rotor is provided between the pump cover 55 and the pump housing 45. The rotor includes an inner rotor 70 and an outer rotor 65 provided outside the inner rotor 70.

또한, 펌프 하우징(45)과 부쉬(50) 사이에는 실링(60)이 게재되어 있다. 부쉬(50)와 실링(60)의 결합부에는 밸브바디에 공급되고 남은 잉여의 오일이 저장되어 있다. In addition, a seal 60 is provided between the pump housing 45 and the bush 50. In the coupling portion of the bush 50 and the seal 60, excess oil remaining after being supplied to the valve body is stored.

또한, 펌프 하우징(45)과 펌프 커버(55)에는 드레인 구멍(75)이 형성되어 있다. 상기 드레인 구멍(75)은 부쉬(50)와 실링(60)의 결합부에 연결되어 잉여의 오일을 드레인한다.In addition, a drain hole 75 is formed in the pump housing 45 and the pump cover 55. The drain hole 75 is connected to the coupling portion of the bush 50 and the sealing 60 to drain excess oil.

종래의 자동변속기의 오일펌프(20)에 따르면, 도 2에 도시된 바와 같이, 부쉬(50)와 실링(60)의 결합부에 저장되어 있는 잉여의 오일은 드레인 구멍(75)을 통하여 클러치(C)로 배출된 후, 변속기의 하부로 흘렀다. 따라서, 클러치(C)의 회전에 의하여 오일이 처닝되고, 이에 따라 오일 내부에 기포가 발생하게 되었다. 이러한 기포의 발생은 오일의 품질을 떨어뜨리게 되었다.According to the oil pump 20 of the conventional automatic transmission, as shown in FIG. 2, the excess oil stored in the coupling portion of the bushing 50 and the sealing 60 passes through the clutch through the drain hole 75. After discharged to C), it flowed to the bottom of the transmission. Therefore, the oil is churned by the rotation of the clutch C, whereby bubbles are generated in the oil. The occurrence of these bubbles degraded the oil.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 드레인 구멍을 통하여 드레인 된 잉여의 오일을 회전 요소가 존재하지 않는 자동변속기의 아랫부분으로 배출시킴으로써 오일 내부에서의 기포 발생을 방지하는데 그 목적이 있 다. The present invention has been made to solve the above problems, the purpose of preventing the occurrence of bubbles in the oil by discharging the excess oil drained through the drain hole to the lower portion of the automatic transmission does not have a rotating element. There is.

상기와 같은 목적을 달성하기 위하여, 본 발명의 실시예에 따른 자동변속기의 오일펌프는, 펌프 하우징; 상기 펌프 하우징에 결합하는 펌프 커버; 상기 펌프 하우징에 압입되어 있는 부쉬; 그리고 상기 펌퍼 커버와 펌프 하우징 사이에 설치되어 있는 로터;를 포함하되, 상기 펌프 하우징과 상기 펌프 커버 사이에는 오일흡입통로, 오일배출통로, 그리고 드레인 유로가 형성되어 있으며, 상기 드레인 유로는 연직 하방향으로 형성되어 있을 수 있다. In order to achieve the above object, the oil pump of the automatic transmission according to an embodiment of the present invention, the pump housing; A pump cover coupled to the pump housing; A bush pressed into the pump housing; And a rotor installed between the pump cover and the pump housing, wherein an oil suction passage, an oil discharge passage, and a drain passage are formed between the pump housing and the pump cover, and the drain passage is vertically downward. It may be formed as.

상기 드레인 유로는 오일 저장소에 연결되어 있을 수 있다.The drain passage may be connected to an oil reservoir.

상기 펌프 하우징과 상기 부쉬 사이에는 실링이 게재되어 있으며, 상기 실링과 상기 부쉬의 결합부에는 잉여의 오일이 저장될 수 있다. A seal is disposed between the pump housing and the bush, and excess oil may be stored in the coupling portion of the seal and the bush.

상기 드레인 유로는 상기 펌프 하우징의 드레인 구멍을 통하여 상기 실링과 상기 부쉬의 결합부에 연결되어 있을 수 있다.The drain flow path may be connected to a coupling portion of the seal and the bush through a drain hole of the pump housing.

이하, 첨부된 도면을 참조로, 본 발명의 실시예를 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 5에 도시된 바와 같이, 본 발명의 실시예에 따른 자동변속기의 오일펌프(100)는 토크 컨버터(300)와 변속유닛(200) 사이에 배치되어 있다. 또한, 자동변속기에는 주축(310)이 설치되어 있다. 또한, 상기 자동변속기의 아래 부분에는 오일 저장소(250)가 형성되어 있으며, 상기 오일 저장소(250)에는 회전 요소가 존재하지 않는다. As shown in Figure 5, the oil pump 100 of the automatic transmission according to an embodiment of the present invention is disposed between the torque converter 300 and the transmission unit 200. In addition, a main shaft 310 is provided in the automatic transmission. In addition, an oil reservoir 250 is formed at a lower portion of the automatic transmission, and there is no rotating element in the oil reservoir 250.

토크 컨버터(300)는 엔진(도시하지 않음)으로부터 동력을 전달받아 주축(310)에 전달한다. 또한, 상기 주축(310)의 토크에 의하여 상기 오일펌프(100)와 변속유닛(200)이 작동된다. The torque converter 300 receives power from an engine (not shown) and transmits the power to the main shaft 310. In addition, the oil pump 100 and the transmission unit 200 are operated by the torque of the main shaft 310.

변속유닛(200)은 하나 이상의 유성기어세트(도시하지 않음), 브레이크(B), 그리고 클러치(C)를 포함한다.The transmission unit 200 includes one or more planetary gear sets (not shown), a brake B, and a clutch C.

도 3에 도시된 바와 같이, 본 발명의 실시예에 따른 자동변속기의 오일펌프(100)는 펌프 하우징(110), 펌프 커버(120), 부쉬(150), 그리고 로터(170)를 포함한다.As shown in FIG. 3, the oil pump 100 of the automatic transmission according to the embodiment of the present invention includes a pump housing 110, a pump cover 120, a bush 150, and a rotor 170.

상기 펌프 커버(120)는 펌프 하우징(110)에 볼트에 의하여 결합되어 있다.The pump cover 120 is coupled to the pump housing 110 by bolts.

부쉬(150)는 상기 펌프 하우징(110)에 압입되어 있다. 상기 부쉬(150)는 로터(170)가 회전하는 경우 마찰력을 줄여준다. The bush 150 is press fit into the pump housing 110. The bush 150 reduces friction when the rotor 170 rotates.

로터(170)는 상기 펌프 커버(120)와 펌프 하우징(110) 사이에 설치되어 있다. 상기 로터(170)은 이너 로터(140)와 상기 이너 로터(140)의 외측에 설치되어 있는 아우터 로터(130)를 포함한다. 상기 로터(170)는 주축(310)과 함께 회전하며 오일을 가합하고 송출한다.The rotor 170 is installed between the pump cover 120 and the pump housing 110. The rotor 170 includes an inner rotor 140 and an outer rotor 130 that is installed outside the inner rotor 140. The rotor 170 rotates together with the main shaft 310, adds oil, and sends oil.

또한, 펌프 하우징(110)과 부쉬(150) 사이에는 실링(160)이 게재되어 있다. 상기 실링(160)은 오일펌프(100)의 오일이 새어 나가는 것을 방지한다. 상기 부쉬(150)와 실링(160)의 결합부에는 밸브 바디에 공급되고 남은 잉여의 오일이 저장되어 있다. In addition, a seal 160 is disposed between the pump housing 110 and the bush 150. The seal 160 prevents oil from leaking out of the oil pump 100. The excess oil remaining after being supplied to the valve body is stored in the coupling portion of the bush 150 and the sealing 160.

또한, 도 4에 도시된 바와 같이, 펌프 하우징(110)과 펌프 커버(120) 사이에 는 오일흡입통로(210), 오일배출통로(220), 드레인 구멍(230), 그리고 드레인 유로(240)가 형성되어 있다. In addition, as shown in FIG. 4, an oil suction passage 210, an oil discharge passage 220, a drain hole 230, and a drain passage 240 are disposed between the pump housing 110 and the pump cover 120. Is formed.

오일흡입통로(210)는 오일 팬(도시하지 않음)으로부터 오일을 흡입한다. The oil suction passage 210 sucks oil from an oil pan (not shown).

오일배출통로(220)는 오일펌프(100)에 의하여 가압된 오일을 밸브 바디(도시하지 않음)로 배출한다. The oil discharge passage 220 discharges the oil pressurized by the oil pump 100 to the valve body (not shown).

드레인 구멍(230)은 부쉬(150)와 실링(160)의 결합부에 연결되어 있다. 따라서, 부쉬(150)와 실링(160)의 결합부에 저장되어 있는 잉여의 오일은 상기 드레인 구멍(230)을 통하여 드레인된다. The drain hole 230 is connected to the coupling portion of the bush 150 and the seal 160. Therefore, the excess oil stored in the coupling portion of the bush 150 and the sealing 160 is drained through the drain hole 230.

또한, 상기 드레인 구멍(230)은 드레인 유로(240)에 연결된다. In addition, the drain hole 230 is connected to the drain flow path 240.

상기 드레인 유로(240)는, 도 5 및 도 6에 도시된 바와 같이, 연직 하방향으로 형성되어 있다. 상기 드레인 유로(240)는 자동변속기 아래 부분에 형성되어 있는 오일 저장소(250)에 연결된다. The drain flow path 240 is formed in the vertical downward direction, as shown in FIGS. 5 and 6. The drain flow path 240 is connected to an oil reservoir 250 formed under the automatic transmission.

즉, 부쉬(150)와 실링(160)의 결합부에 저장되어 있는 잉여의 오일은 드레인 구멍(230)을 통해서 드레인 유로(240)에 공급된 후, 잉여의 오일은 상기 드레인 유로(240)를 통하여 회전 요소가 존재하지 않는 오일 저장소(250)로 배출된다. 따라서, 오일 내부에 처닝(churning)에 의한 거품이 발생하지 않는다. That is, the excess oil stored in the coupling portion of the bush 150 and the sealing 160 is supplied to the drain flow path 240 through the drain hole 230, and then the excess oil returns to the drain flow path 240. It is discharged through the oil reservoir 250 where there is no rotating element. Thus, bubbles due to churning do not occur inside the oil.

상기 오일 저장소(250)에 배출된 오일은 필터 등을 거친 후 다시 오일흡입통로(210)를 통하여 오일펌프(100)에 공급된다. The oil discharged to the oil reservoir 250 is supplied to the oil pump 100 through the oil suction passage 210 after passing through a filter.

이상으로 본 발명에 관한 바람직한 실시예를 설명하였으나, 본 발명은 상기 실시예에 한정되지 아니하며, 본 발명의 실시예로부터 당해 발명이 속하는 기술분 야에서 통상의 지식을 가진 자에 의한 용이하게 변경되어 균등하다고 인정되는 범위의 모든 변경을 포함한다.Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be easily changed by those skilled in the art from the embodiments of the present invention. Includes all changes that are considered to be equivalent.

상기한 바와 같이, 본 발명에 의하면 드레인 구멍을 통하여 드레인 된 잉여의 오일이 드레인 유로를 통하여 회전 요소가 존재하지 않는 오일 저장소로 배출된다. 따라서, 오일이 교반되지 않으므로 오일 내부에 거품이 발생하지 않는다. 또한, 오일의 품질을 유지할 수 있다. As described above, according to the present invention, the excess oil drained through the drain hole is discharged through the drain flow path to the oil reservoir in which there is no rotating element. Therefore, the oil is not agitated and there is no foam inside the oil. In addition, the quality of the oil can be maintained.

Claims (4)

자동변속기의 오일펌프에 있어서,In the oil pump of the automatic transmission, 펌프 하우징;Pump housings; 상기 펌프 하우징에 결합하는 펌프 커버;A pump cover coupled to the pump housing; 상기 펌프 하우징에 압입되어 있는 부쉬; 그리고A bush pressed into the pump housing; And 상기 펌프 커버와 펌프 하우징 사이에 설치되어 있는 로터;A rotor installed between the pump cover and the pump housing; 를 포함하되, Including but not limited to: 상기 펌프 하우징과 상기 펌프 커버 사이에는 오일흡입통로, 오일배출통로, 그리고 드레인 유로가 형성되어 있으며, 상기 드레인 유로는 연직 하방향으로 형성되어 오일 저장소에 연결되어 있는 것을 특징으로 하는 자동변속기의 오일펌프.An oil suction passage, an oil discharge passage, and a drain passage are formed between the pump housing and the pump cover, and the drain passage is vertically downwardly connected to an oil reservoir. . 삭제delete 제 1항에 있어서,The method of claim 1, 상기 펌프 하우징과 상기 부쉬 사이에는 실링이 게재되어 있으며, 상기 실링과 상기 부쉬의 결합부에는 잉여의 오일이 저장되는 것을 특징으로 하는 자동변속기의 오일펌프.Sealing is provided between the pump housing and the bush, the oil pump of the automatic transmission, characterized in that the excess oil is stored in the coupling portion of the seal and the bush. 제 3항에 있어서,The method of claim 3, wherein 상기 드레인 유로는 상기 펌프 하우징의 드레인 구멍을 통하여 상기 실링과 상기 부쉬의 결합부에 연결되어 있는 것을 특징으로 하는 자동변속기의 오일펌프.The drain passage is connected to the coupling portion of the seal and the bush through the drain hole of the pump housing, the oil pump of the automatic transmission.
KR1020060123320A 2006-12-06 2006-12-06 Oil pump of automatic transmission KR100892695B1 (en)

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KR1020060123320A KR100892695B1 (en) 2006-12-06 2006-12-06 Oil pump of automatic transmission
JP2007009383A JP2008144956A (en) 2006-12-06 2007-01-18 Oil pump for automatic transmission
CN2007100069914A CN101196188B (en) 2006-12-06 2007-01-31 Hydraulic pump of automatic transmission
US11/709,501 US20080138220A1 (en) 2006-12-06 2007-02-22 Hydraulic pump of automatic transmission

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US20080138220A1 (en) 2008-06-12
CN101196188B (en) 2011-08-31

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